Window stop



Nov. 2,1926. f 1,605,559"

R. c. PlscAToR WINDOW STOP Filed' Feb. 21 1925 la F zo agi' Iriver/TOR, 8 Faber? .Pfcdfar;

Patented Nov. 2, 1926.

UNlTED STATES PATENT @PHC ROBERT Ci PISCATOR, OF INDIANAPOLIS, INDIANA, ASSIGNOR T QUALITY PLATING AND MANUFACTURING COMPANY, A CORPORATION vOF INDIANA.

WINDOW STOP.

Application filed February 21, 1925.

My invention relates to means for holding a window in any position, and it is the primary purpose of my invention to provide such simple means as will automatically engage and hold windows, such as are common- 1y employed in closed automobiles, by direct Acontact of the window glass, and as may be released instantly without turning adjusting screws or unhooking elevating straps.

Further objects reside in the prevention of rattling of the windows, and the obtaining of a tighter grip or contact with the glass by vibration. A satisfactory window stop for the windows in an enclosed car has always been a problem, and the usual stop has heretofore consisted of a screw adapted to be turned up against the window, a strap attached to the bottom of the window and engaged over a stud or hook, or an elaborate crank device to raise or lower the window, none of which means has been of a durable nature nor permitted kof any selective opening of the window other than at the pre-determined points.

My invention eliminates the necessity of predetermining the window opening limits as above indicated, and is embodied in an article of manufacture adapted to be furnished as a replacement for the devices found on the windows. It may be made at an eX- tremely low cost and the manufacturing process is exceedingly simple.

I accomplish these and such other objects as may be apparent in the following description by the means as shown in the accompanying drawing, in which- Fig. 1 is a fragment of a wall in perspective showing my window stop holding a window in a partly raised position; Fig. 2, a side elevation of the stop; Fig. 3, a similar elevation of the stop, but with the retaining screw removed; Fig. 4, a horizontal section taken on the line A 4 of Fig. 2; Fig. 5, an elevation of the glass contacting face of the stopcam; Fig. 6, a rear elevation of the stop with fragments of the cam andv the window frame removed; Fig. 7 a side ele vation of a modified cam; and Fig. 8, a side elevation of a still further modified cam.

Like characters of reference indicate like parts throughout the several views.

My stop' is preferably adapted to contact the glass of a window rather than any frame that may contain the glass, although the stopl Serial No. 10,754.

is operative in conjunction with such a frame.

I form a stop cam 10 of rubber with a face 11 adapted to Contact the window glass 12. The cam 10 is cut through by a slot 13, Figs. 2 and 3, the slot 13 being formed at an angle with face-11 so as to recede backwardly away from the face 11.

A bushing 14, Figs. 3, 4, and 6, is loosely extend-ed through the slot 13, and is provided with the stop shoulder 15. A back washer 16 is carried on the bushing 14 to contact the shoulder 15. An outer washer 17 confines the cam 10 on the bushing 14,

by means of the scr-ew 18 passing through the bushing and into the window frame 19 such that the head seats on the outer end of the bushing 14 and extends beyond the bushing sufficiently to act as an outer stop for the washer 1'?. By this structure, the cam 10 is free to travel on the bushing 14 throughout the length of the slot 13 such that by raising the cam 10, it travels away from the glass 12, by reason of the slot being inclined backwardly as in Fig. 3, where the cam 10 is shown by dash lines in its extreme upper position farthest removed from the glass 12, and by the solid lines in a lowered and forward position of contact with the glass. The relative position of the stop, the glass and the frame are best shown in Fig. 1, though the location of the stop may be varied at will so thatwhere a replacement is made the old screw of a prior device may be removed to permit the substitution of the screw 18 of my stop. Vhere the frame is metal, a machine screw may be substituted for the wood screw as I have here shown.

In the face 11 of the cam which contacts the glass, I form a cup-like depressionV 20. By noting Figs. 2 and 3, particularly, it will be noted that the structure as I have above described shows a substantial wedge of the cam 1() lying between the screw 18 and the glass 12, such that by gravity alone, the cam 10 tends to remain in contact with the glass 12. Vibration, as is encountered in automobiles will tend to cause the cam to travel downward and therefore against the glass 12, such that the independent vibration of the glass 12 is stopped by the firm Contact of the cam 10. A slight push downward on the cam 1() will accomplish the same result.

When the cam 10 is so positioned, it is slightly compressed, depen-ding upon the pressure by which it has been positioned, such that the air in the depression 2O has been partially pressed out, and any tendency to lift the cain 10, is resisted by the vacuuni so torlned. Furthermore, when the cain 10 is so pressed downwardly, it is pressed back* wardly against the stop or screw 18, with the result that a substantial portion of the Cain 10 is compresse-d to 'forni the notch 21 behind the bushing` 14, such that the shoulder' on the notch 21 inust be travelled over to permit raising the cani 10, thereby7 iforininpan additional locking nieans or holding the cain 10 lir1nly against the glass 12.

lt is also apparent that any `tendency of the window glass 12 to travel downwardly will serve to binfgl the cani 10 into liiiner Contact with the `glass 12 by `ieason or the cani wede'ing between the stop screw 1S and the The washers 15 and 17 serve as guides to direct the travel of the can 10 and prevent any tendency of the cani 1() to buckle. By .revel'sing` the screw 1S and the bushing; 11i, the stop may be attac led to either a right hand or leit hand part oi the window 'traine and no additional parts are required.

llhile the shape ol the Cain 10 as shown in Figs. 'l-G, having a tace 11 of considerable area contacting' the `ejlass, is a preferred forni, the cam 10 may assuine a variety ot shapesas shown in Figs. and 8. Fig. T shows a circular cani 22 with a sfraikejht slot while Fig. S shows a circular Can 24 with an inwardly curving` slot 25, both of which cani liorins present a wede adapted to be squeezed against the glass between it and a screw or post.

l claiin:

1. ln a window stop, a rubber' cani, a contatting` tace on the earn, said cam havinga slot therethrough at an angle backwardly iroin the face, and a supportingr post passing through the slot.

2. ln a window stop, a yielding cain, a contacting` face on the cam, said cani having a slot therethrough receding backwardly Ylroin the face, a supporting post passing through the slot, and sL id Cain havingl a `depression in said contacting` lace.

A window stop con'lprisinga eain having a. slot therethrough on an angle with 'the contacting` laee ot the cani, and a post adapted to slide treely in said slot, said cam having; an elastically yielding' body about said slot whereby said post inay be depressed in said cain body to act as a resistance 'to further travel oit the post along said slot.

A window stop comprising a. cani having` a slot therethrough on an angle with the contacting tace ott' the cani, and a post adapted to slide lireely in said slot, said cani having; an elastically yieldingbody about said slot whereby said post inay be depressed in said cani body to act as a resistance to further travel oi the post along` said slot, and said cani having` an elastically-yielding contacting face, said contactingface having` a cupped depression.

Siened at indianapolis, county of Marion, State of lndiana, this the 19th day of Februarv 1925.

J nonnn'r c. riscaroa. 

